Implement action=mergehistory

[lhc/web/wiklou.git] / includes / specials / SpecialMergeHistory.php

diff --git a/includes/specials/SpecialMergeHistory.php b/includes/specials/SpecialMergeHistory.php
index f11ed9a..0cefb38 100644 (file)
--- a/includes/specials/SpecialMergeHistory.php
+++ b/includes/specials/SpecialMergeHistory.php
@@ -68,6 +68,10 @@ class SpecialMergeHistory extends SpecialPage {
                parent::__construct( 'MergeHistory', 'mergehistory' );
        }
 
+       public function doesWrites() {
+               return true;
+       }
+
        /**
         * @return void
         */
@@ -343,142 +347,21 @@ class SpecialMergeHistory extends SpecialPage {
                if ( $targetTitle->getArticleID() == $destTitle->getArticleID() ) {
                        return false;
                }
-               # Verify that this timestamp is valid
-               # Must be older than the destination page
-               $dbw = wfGetDB( DB_MASTER );
-               # Get timestamp into DB format
-               $this->mTimestamp = $this->mTimestamp ? $dbw->timestamp( $this->mTimestamp ) : '';
-               # Max timestamp should be min of destination page
-               $maxtimestamp = $dbw->selectField(
-                       'revision',
-                       'MIN(rev_timestamp)',
-                       array( 'rev_page' => $this->mDestID ),
-                       __METHOD__
-               );
-               # Destination page must exist with revisions
-               if ( !$maxtimestamp ) {
-                       $this->getOutput()->addWikiMsg( 'mergehistory-fail' );
-
-                       return false;
-               }
-               # Get the latest timestamp of the source
-               $lasttimestamp = $dbw->selectField(
-                       array( 'page', 'revision' ),
-                       'rev_timestamp',
-                       array( 'page_id' => $this->mTargetID, 'page_latest = rev_id' ),
-                       __METHOD__
-               );
-               # $this->mTimestamp must be older than $maxtimestamp
-               if ( $this->mTimestamp >= $maxtimestamp ) {
-                       $this->getOutput()->addWikiMsg( 'mergehistory-fail' );
-
-                       return false;
-               }
-               # Get the timestamp pivot condition
-               if ( $this->mTimestamp ) {
-                       $timewhere = "rev_timestamp <= {$this->mTimestamp}";
-                       $timestampLimit = wfTimestamp( TS_MW, $this->mTimestamp );
-               } else {
-                       $timewhere = "rev_timestamp <= {$maxtimestamp}";
-                       $timestampLimit = wfTimestamp( TS_MW, $lasttimestamp );
-               }
-               # Check that there are not too many revisions to move
-               $limit = 5000; // avoid too much slave lag
-               $count = $dbw->selectRowCount( 'revision', '1',
-                       array( 'rev_page' => $this->mTargetID, $timewhere ),
-                       __METHOD__,
-                       array( 'LIMIT' => $limit + 1 )
-               );
-               if ( $count > $limit ) {
-                       $this->getOutput()->addWikiMsg( 'mergehistory-fail-toobig' );
-
-                       return false;
-               }
-               # Do the moving...
-               $dbw->update(
-                       'revision',
-                       array( 'rev_page' => $this->mDestID ),
-                       array( 'rev_page' => $this->mTargetID, $timewhere ),
-                       __METHOD__
-               );
 
-               $count = $dbw->affectedRows();
-               # Make the source page a redirect if no revisions are left
-               $haveRevisions = $dbw->selectField(
-                       'revision',
-                       'rev_timestamp',
-                       array( 'rev_page' => $this->mTargetID ),
-                       __METHOD__,
-                       array( 'FOR UPDATE' )
-               );
-               if ( !$haveRevisions ) {
-                       if ( $this->mComment ) {
-                               $comment = $this->msg(
-                                       'mergehistory-comment',
-                                       $targetTitle->getPrefixedText(),
-                                       $destTitle->getPrefixedText(),
-                                       $this->mComment
-                               )->inContentLanguage()->text();
-                       } else {
-                               $comment = $this->msg(
-                                       'mergehistory-autocomment',
-                                       $targetTitle->getPrefixedText(),
-                                       $destTitle->getPrefixedText()
-                               )->inContentLanguage()->text();
-                       }
-
-                       $contentHandler = ContentHandler::getForTitle( $targetTitle );
-                       $redirectContent = $contentHandler->makeRedirectContent( $destTitle );
-
-                       if ( $redirectContent ) {
-                               $redirectPage = WikiPage::factory( $targetTitle );
-                               $redirectRevision = new Revision( array(
-                                       'title' => $targetTitle,
-                                       'page' => $this->mTargetID,
-                                       'comment' => $comment,
-                                       'content' => $redirectContent ) );
-                               $redirectRevision->insertOn( $dbw );
-                               $redirectPage->updateRevisionOn( $dbw, $redirectRevision );
-
-                               # Now, we record the link from the redirect to the new title.
-                               # It should have no other outgoing links...
-                               $dbw->delete( 'pagelinks', array( 'pl_from' => $this->mDestID ), __METHOD__ );
-                               $dbw->insert( 'pagelinks',
-                                       array(
-                                               'pl_from' => $this->mDestID,
-                                               'pl_from_namespace' => $destTitle->getNamespace(),
-                                               'pl_namespace' => $destTitle->getNamespace(),
-                                               'pl_title' => $destTitle->getDBkey() ),
-                                       __METHOD__
-                               );
-                       } else {
-                               // would be nice to show a warning if we couldn't create a redirect
-                       }
-               } else {
-                       $targetTitle->invalidateCache(); // update histories
-               }
-               $destTitle->invalidateCache(); // update histories
-               # Check if this did anything
-               if ( !$count ) {
-                       $this->getOutput()->addWikiMsg( 'mergehistory-fail' );
+               // MergeHistory object
+               $mh = new MergeHistory( $targetTitle, $destTitle, $this->mTimestamp );
 
+               // Merge!
+               $mergeStatus = $mh->merge( $this->getUser(), $this->mComment );
+               if ( !$mergeStatus->isOK() ) {
+                       // Failed merge
+                       $this->getOutput()->addWikiMsg( $mergeStatus->getMessage() );
                        return false;
                }
-               # Update our logs
-               $logEntry = new ManualLogEntry( 'merge', 'merge' );
-               $logEntry->setPerformer( $this->getUser() );
-               $logEntry->setComment( $this->mComment );
-               $logEntry->setTarget( $targetTitle );
-               $logEntry->setParameters( array(
-                       '4::dest' => $destTitle->getPrefixedText(),
-                       '5::mergepoint' => $timestampLimit
-               ) );
-               $logId = $logEntry->insert();
-               $logEntry->publish( $logId );
 
                $targetLink = Linker::link(
                        $targetTitle,
-                       $targetTitle->getPrefixedText(),
+                       null,
                        array(),
                        array( 'redirect' => 'no' )
                );
@@ -486,11 +369,9 @@ class SpecialMergeHistory extends SpecialPage {
                $this->getOutput()->addWikiMsg( $this->msg( 'mergehistory-done' )
                        ->rawParams( $targetLink )
                        ->params( $destTitle->getPrefixedText() )
-                       ->numParams( $count )
+                       ->numParams( $mh->getMergedRevisionCount() )
                );
 
-               Hooks::run( 'ArticleMergeComplete', array( $targetTitle, $destTitle ) );
-
                return true;
        }